Defy Appliances / Defy South Africa

Complaint: Defy Gemini Double Oven DBO467: ‘Service' Number: 1280833
I, Dr.A.A. Motala, am based in Durban, South Africa. On 13 May 2020, I purchased a Defy Gemini Double Oven DBO467 from Hirschs in Durban (as my previous oven was also a Defy Gemini Double Oven). It was delivered on 14 May 2020.
Over the next few days, I discovered that when ‘Setting the end of cooking time to a later
Time', the fan went on at the time of the setting, instead of when the oven is scheduled to switch on (for example, if at 10.00hr, I set the timer to end at 5pm, with 1 hour of cooking time, the oven switches on at 4pm, but the fan is running from 10.00hr!). I am au fait with using such a timer given that I previously owned such an oven.
I then called my Appliance store salesperson who arranged for a Defy person to make a house call. This was done by a person called Victor, from the Durban Defy centre, on Wed 27 May20- I demonstrated to him the problem, but as he too could not understand why, he called ? his senior, and left saying that it would be investigated further and that Defy would revert.
I received a call on 29 May 20 from [protected] (?from Defy), which I was unable to answer- but no voice message was left for me- |I tried calling back with no success.
However, this did not happen- instead I received a text message (SMS) on Sat 30 May20, requesting that I fill in a survey, which I did, on 01 June20, highlighting my dissatisfaction that the problem had not yet been resolved, and also re-contacted the salesperson at Hirschs, who stated that she will ask that Defy be contacted again.
I then called the Call Centre on Tues 2 June 20, giving my ‘Job No'(1280833), and to my surprise, the lady informed me that the report by Victor, was that the ‘client would read the Instruction Manual'- this I found highly offensive and expressed this to the Call Centre lady, who then discussed this with her Senior (?an Ismail) who asked her to inform me that he would call me to ‘teach' me how to use the timer- to date, I have not received a call.
The problem of course, still persists, as recently as 2 days ago, when I set the time at 11.00hr to end at 5pm, with 1 hour of cooking time- the fan started running at the time of setting (11.00hr), but oven switched on at the correct time (4pm). It is extremely disturbing that the noise of the fan persists throughout the time, as this has not happened with my previous oven.
I consider this extremely poor service delivery from a company that has been trusted by me and many South Africans over the past many decades. I have tried to send this complaint through their website, but there is no email address for this (only telephone numbers) and given the previously unhelpful calls, I am doing it through another site.
I trust that Defy will respond and resolve the problem I am currently experiencing.